Make sure you have updated to all the latest updates, then if you are using Chrome you have to do a TRUE browser refresh by pressing:
Command-Shift-R (on Mac)
For windows there seems to be conflicting reports of how to do it:
https://superuser.com/questions/89809/how-to-force-refresh-without-cache-in-google-chrome
Chrome unfortunately is super aggressive about caching even when it is wrong. You can also try a different browser.
NOTE: If you are using any 3rd party editor plugins, such as the "Editor Code Mirror" module, you need to disable those until Steve comes out with an update.
Let me know if that helps.
--
Brian Johnson
Founder and Lead Developer - Jamroom
https://www.jamroom.net